← single night · whole-night plan
Which nights are best for a target over the coming weeks. The astronomy mark (darkness × altitude × Moon) is computed for every night; the weather and the overall mark exist only where Open-Meteo has a forecast (the next four days) or ERA5 history (past nights) — the rest is honestly blank.
| night of | astronomy | weather | overall | best window | highest | dark h | Moon | Moon sep. |
|---|---|---|---|---|---|---|---|---|
| 2035-06-15 Fri | 7 | — | unknown | 23:10–00:15 (marginal, 1.08 h) | 50.2° 20:15 | 4.46 | 79% | 24.8° |
| 2035-06-16 Sat | 7 | — | unknown | 23:10–00:05 (marginal, 0.92 h) | 50.2° 20:15 | 4.44 | 87% | 36.9° |
| 2035-06-17 Sun | 7 | — | unknown | 23:10–00:05 (marginal, 0.92 h) | 50.2° 20:10 | 4.44 | 92% | 48.9° |
| 2035-06-18 Mon | 9 | — | unknown | 23:10–00:10 (marginal, 1.0 h) | 50.2° 20:05 | 4.43 | 97% | 60.8° |
| 2035-06-19 Tue | 10 | — | unknown | 23:10–00:10 (marginal, 1.0 h) | 50.2° 20:00 | 4.43 | 99% | 72.6° |
| 2035-06-20 Wed | 11 | — | unknown | 23:15–00:15 (marginal, 1.0 h) | 50.2° 19:55 | 4.42 | 100% | 84.5° |
| 2035-06-21 Thu | 13 | — | unknown | 23:15–23:20 (good, 0.08 h) | 50.2° 19:55 | 4.42 | 99% | 96.3° |
| 2035-06-22 Fri | 15 | — | unknown | 23:15–23:25 (good, 0.17 h) | 50.2° 19:50 | 4.42 | 96% | 108.2° |
| 2035-06-23 Sat | 15 | — | unknown | 23:15–23:30 (good, 0.25 h) | 50.2° 19:45 | 4.43 | 91% | 120.1° |
| 2035-06-24 Sun | 15 | — | unknown | 23:15–23:25 (good, 0.17 h) | 50.2° 19:40 | 4.43 | 85% | 132.2° |
| 2035-06-25 Mon | 14 | — | unknown | 23:15–23:30 (good, 0.25 h) | 50.2° 19:35 | 4.44 | 78% | 144.5° |
| 2035-06-26 Tue | 13 | — | unknown | 23:15–23:25 (good, 0.17 h) | 50.2° 19:35 | 4.45 | 69% | 156.9° |
| 2035-06-27 Wed | 12 | — | unknown | 23:15–23:20 (good, 0.08 h) | 50.2° 19:30 | 4.47 | 59% | 169.5° |
| 2035-06-28 Thu | 11 | — | unknown | 22:20–23:45 (marginal, 1.42 h) | 50.2° 19:25 | 4.48 | 48% | 176.3° |
| 2035-06-29 Fri | 10 | — | unknown | 23:10–23:15 (good, 0.08 h) | 50.2° 19:20 | 4.5 | 38% | 163.4° |
| 2035-06-30 Sat | 9 | — | unknown | 22:20–23:40 (marginal, 1.33 h) | 50.2° 19:20 | 4.51 | 27% | 149.6° |
| 2035-07-01 Sun | 8 | — | unknown | 22:20–23:05 (marginal, 0.75 h) | 50.2° 19:15 | 4.53 | 17% | 135.3° |
| 2035-07-02 Mon | 7 | — | unknown | 22:20–23:00 (marginal, 0.67 h) | 50.2° 19:10 | 4.56 | 9% | 120.5° |
| 2035-07-03 Tue | 6 | — | unknown | 22:20–23:00 (marginal, 0.67 h) | 50.2° 19:05 | 4.58 | 4% | 105.5° |
| 2035-07-04 Wed | 5 | — | unknown | 22:20–22:55 (marginal, 0.58 h) | 50.2° 19:00 | 4.61 | 0% | 90.3° |
| 2035-07-05 Thu | 5 | — | unknown | 22:20–22:50 (marginal, 0.5 h) | 50.2° 19:00 | 4.63 | 0% | 75.2° |
| 2035-07-06 Fri | 4 | — | unknown | 22:20–22:45 (marginal, 0.42 h) | 50.2° 18:55 | 4.66 | 4% | 60.2° |
| 2035-07-07 Sat | 3 | — | unknown | 22:15–22:40 (marginal, 0.42 h) | 50.2° 18:50 | 4.69 | 9% | 45.5° |
| 2035-07-08 Sun | 3 | — | unknown | 22:15–22:30 (marginal, 0.25 h) | 50.2° 18:45 | 4.73 | 17% | 31.2° |
| 2035-07-09 Mon | 2 | — | unknown | 22:15–22:20 (marginal, 0.08 h) | 50.2° 18:40 | 4.76 | 26% | 17.4° |
| 2035-07-10 Tue | 2 | — | unknown | — | 50.2° 18:40 | 4.79 | 36% | 4.5° |
| 2035-07-11 Wed | 1 | — | unknown | — | 50.2° 18:35 | 4.83 | 46% | 9.2° |
| 2035-07-12 Thu | 1 | — | unknown | — | 50.2° 18:30 | 4.87 | 56% | 21.6° |
| 2035-07-13 Fri | 1 | — | unknown | — | 50.2° 18:25 | 4.91 | 66% | 33.9° |
| 2035-07-14 Sat | 1 | — | unknown | — | 50.2° 18:25 | 4.95 | 75% | 45.9° |
curl -sS "https://devops.majbase.com/rozhen-planner/calendar-api?target=M31&date=2035-06-15&days=30"
curl -sS "https://devops.majbase.com/rozhen-planner/calendar-api?target=M31&days=30&format=csv" -o m31-calendar.csvOne row per night: score_astronomy always, score_weather / score only where a forecast or history exists (null otherwise, with weather_source saying which), best window, dark hours, Moon illumination and separation, transit. 7–60 nights. Errors: 400 with invalid_date or target_unresolved. Results are cached for six hours; calculation version 2026-10-10.1.